watchOS

watchOS 3.2 brings a new Theater Mode, SiriKit, and other improvements.

Theater Mode
Introduced in watchOS 3.2, Theater Mode lets users quickly mute the sound on their Apple Watch and avoid waking the screen on wrist raise. Users still receive notifications (including haptics) while in Theater Mode, which they can view by tapping the screen or pressing the Digital Crown.

SiriKit
watchOS 3.2 includes SiriKit. Users can ask Siri on their Apple Watch to book a ride, send a message, make a payment, or make other requests that your app can handle.

Apps that provide services in specific domains can use SiriKit to make those services available through Siri on watchOS. Making your services available requires creating one or more app extensions using the Intents and Intents UI frameworks. SiriKit in watchOS supports services in the following domains: Messaging, Payments, Ride booking, Workouts, Calling, and Searching photos

macOS

Focus Areas
Please focus testing on the following areas:
 Night Shift preference for automatically shifting the colors of your display to the warmer end of the spectrum after dark
 Siri support for checking Cricket scores, schedules, and player rosters from the Indian Premier League and International Cricket Council
 Dictation support for Shanghainese
 Reading, writing and navigating PDFs using system-provided APIs